00:01
This problem gives us a system and it asks us to choose the best description of its solution.
00:05
And if we can, give the solution.
00:07
One method we can use to solve for a system of equations is by using elimination.
00:12
We'll use elimination here since we already have a plus y and a negative y lined up.
00:17
Adding our columns of our x values, which is negative 4x plus negative 4x, which is negative 8x.
00:23
And then plus y minus y will eliminate.
00:26
Equal to negative 4 plus negative 4, which gives us negative 8.
00:29
And now we can divide by negative 8 to solve for x.
00:33
And that tells us x is equal to negative 8 divided by negative 8, which is positive 1.
00:38
And for the solution to a system, we need an ordered pair.
00:41
So that's an x value and a y value...